We have one which DS1 (3) uses. I thought he might be happy to pass it on to DS2 (10 months) and to sit on an ordinary chair, but no chance!
Cant decide if its worth getting one for DS2 as well, since they can be converted into proper chairs, though have no idea if this works in reality. (DS2 has a cheapy IKEA highchair at the mo.)
Any feedback much appreicated.